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Finding the Fourth Proportional to 522,031.20, 783,119.70 and 222,509.40

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Solution

The fourth proportional to 522,031.20, 783,119.70 and 222,509.40 is: 333,795.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,031.20 : 783,119.70 = 222,509.40 : x
  2. Step 2: Convert to fraction form
    522,031.20/783,119.70 = 222,509.40/x
  3. Step 3: Cross multiply
    522,031.20x = 783,119.70 × 222,509.40
  4. Step 4: Simplify right side
    522,031.20x = 174,251,494,575.18
  5. Step 5: Solve for x
    x = 174,251,494,575.18/522,031.20
  6. Step 6: Final answer
    x = 333,795.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.